void CPDF_RenderStatus::DrawObjWithBackground(CPDF_PageObject* pObj,
const CFX_Matrix* pObj2Device) {
FX_RECT rect;
if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
return;
}
int res = 300;
if (pObj->IsImage() &&
m_pDevice->GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
res = 0;
}
CPDF_ScaledRenderBuffer buffer;
if (!buffer.Initialize(m_pContext, m_pDevice, rect, pObj, &m_Options, res)) {
return;
}
CFX_Matrix matrix = *pObj2Device;
matrix.Concat(*buffer.GetMatrix());
GetScaledMatrix(matrix);
CPDF_Dictionary* pFormResource = nullptr;
if (pObj->IsForm()) {
const CPDF_FormObject* pFormObj = pObj->AsForm();
if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
pFormResource = pFormObj->m_pForm->m_pFormDict->GetDictBy("Resources");
}
}
CPDF_RenderStatus status;
status.Initialize(m_pContext, buffer.GetDevice(), buffer.GetMatrix(), nullptr,
nullptr, nullptr, &m_Options, m_Transparency,
m_bDropObjects, pFormResource);
status.RenderSingleObject(pObj, &matrix);
buffer.OutputToDevice();
}
void CPDF_RenderStatus::DrawObjWithBackground(
const CPDF_PageObject* pObj,
const CFX_AffineMatrix* pObj2Device) {
FX_RECT rect;
if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
return;
}
int res = 300;
if (pObj->m_Type == PDFPAGE_IMAGE &&
m_pDevice->GetDeviceCaps(FXDC_DEVICE_CLASS) == FXDC_PRINTER) {
res = 0;
}
CPDF_ScaledRenderBuffer buffer;
if (!buffer.Initialize(m_pContext, m_pDevice, &rect, pObj, &m_Options, res)) {
return;
}
CFX_AffineMatrix matrix = *pObj2Device;
matrix.Concat(*buffer.GetMatrix());
GetScaledMatrix(matrix);
CPDF_Dictionary* pFormResource = NULL;
if (pObj->m_Type == PDFPAGE_FORM) {
CPDF_FormObject* pFormObj = (CPDF_FormObject*)pObj;
if (pFormObj->m_pForm && pFormObj->m_pForm->m_pFormDict) {
pFormResource =
pFormObj->m_pForm->m_pFormDict->GetDict(FX_BSTRC("Resources"));
}
}
CPDF_RenderStatus status;
status.Initialize(m_pContext, buffer.GetDevice(), buffer.GetMatrix(), NULL,
NULL, NULL, &m_Options, m_Transparency, m_bDropObjects,
pFormResource);
status.RenderSingleObject(pObj, &matrix);
buffer.OutputToDevice();
}
void CPDF_RenderStatus::DrawShadingPattern(CPDF_ShadingPattern* pattern,
CPDF_PageObject* pPageObj,
const CFX_Matrix* pObj2Device,
FX_BOOL bStroke) {
if (!pattern->Load()) {
return;
}
m_pDevice->SaveState();
if (pPageObj->m_Type == PDFPAGE_PATH) {
if (!SelectClipPath((CPDF_PathObject*)pPageObj, pObj2Device, bStroke)) {
m_pDevice->RestoreState();
return;
}
} else if (pPageObj->m_Type == PDFPAGE_IMAGE) {
FX_RECT rect = pPageObj->GetBBox(pObj2Device);
m_pDevice->SetClip_Rect(&rect);
} else {
return;
}
FX_RECT rect;
if (GetObjectClippedRect(pPageObj, pObj2Device, FALSE, rect)) {
m_pDevice->RestoreState();
return;
}
CFX_Matrix matrix = pattern->m_Pattern2Form;
matrix.Concat(*pObj2Device);
GetScaledMatrix(matrix);
int alpha = pPageObj->m_GeneralState.GetAlpha(bStroke);
DrawShading(pattern, &matrix, rect, alpha,
m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
m_pDevice->RestoreState();
}
void CPDF_RenderStatus::DitherObjectArea(const CPDF_PageObject* pObj,
const CFX_AffineMatrix* pObj2Device) {
CFX_DIBitmap* pBitmap = m_pDevice->GetBitmap();
if (pBitmap == NULL) {
return;
}
FX_RECT rect;
if (GetObjectClippedRect(pObj, pObj2Device, FALSE, rect)) {
return;
}
if (m_DitherBits == 2) {
static FX_ARGB pal[4] = {0, 85, 170, 255};
pBitmap->DitherFS(pal, 4, &rect);
} else if (m_DitherBits == 3) {
static FX_ARGB pal[8] = {0, 36, 73, 109, 146, 182, 219, 255};
pBitmap->DitherFS(pal, 8, &rect);
} else if (m_DitherBits == 4) {
static FX_ARGB pal[16] = {0, 17, 34, 51, 68, 85, 102, 119,
136, 153, 170, 187, 204, 221, 238, 255};
pBitmap->DitherFS(pal, 16, &rect);
}
}
